Abstract:
A locking and unlocking apparatus using an engagement pin with beveled surfaces designed to be inserted between two bodies. As the engagement pin is extended axially into a gap between the two bodies, it moves in a transverse direction to wedge tightly between the first and second body, locking them tightly together. When the engagement pin is retracted, the second body is able to move relative to the first body. A plurality of engagement surfaces placed into one of the bodies allows the mechanism to be locked into a plurality of set positions. These engagement surfaces on the first and second bodies also serve to locate the engagement pin when in the fully locked position, thereby reducing the need for tight tolerances.
Abstract:
A locking and unlocking apparatus using an engagement pin with beveled surfaces designed to be inserted between two bodies. As the engagement pin is extended axially into a gap between the two bodies, it moves in a transverse direction to wedge tightly between the first and second body, locking them tightly together. When the engagement pin is retracted, the second body is able to move relative to the first body. A plurality of engagement surfaces placed into one of the bodies allows the mechanism to be locked into a plurality of set positions. These engagement surfaces on the first and second bodies also serve to locate the engagement pin when in the fully locked position, thereby reducing the need for tight tolerances.
Abstract:
An exemplary housing includes a first cover, a second cover for coupled with the first cover, a trigger, two movable latches, a first resilient member, two second resilient members, and two extending arms. The first cover includes two engaging portions. The trigger is disposed on the second cover and slidable along a first direction. The movable latches are disposed on the second cover and slidable along a second direction. Each movable latch includes an engaging portion for engaging the engaging portions of the first cover. The resilient members are configured for resetting the trigger and the movable latches. The extending arms are rotatably connected to the trigger and the movable latches. A slide of the trigger forces the movable latches to slide, thus making the engaging portions of the first cover and the movable latches engage or disengage each other.
Abstract:
A connecting assembly (1) for fastening an add-on element (2) on a carrier element (3) includes a foot (4) which can be inserted into an opening (39) of the carrier element (3) and has fixing means (40) for fixing the foot (4) with respect to the carrier element (3) in a direction parallel to the longitudinal axis (41) of the foot (4). The connecting assembly (1) further includes a pin (5) which can be inserted into a passage (20) of the add-on element (2) and has retaining means (50) which counteract a displacement of the add-on element (2) in a direction parallel to the longitudinal axis (51) of the pin (5). The pin (5) is adapted to be inserted into the foot (4) and has locking means (52) which cooperate with complementary locking means (42) of the foot (4) in a radial direction with -respect to the longitudinal axes (41, 51). The foot (4) has two elastic axial restoring means (43) with respect to its longitudinal axis (41) which hold a support surface (54) of the pin (5) and a counter support surface (44) of the foot (4) in contact with each other when the locking means (52) of the pin (5) cooperate with the complementary locking means (42) of the foot (4) after the insertion of the pin (5) into the foot (4).
Abstract:
A hold down device is provided using a drive knob having a clutch therein which turns a drive shaft for moving a pawl shaft in and out with respect to the drive shaft. A pawl on the end of the pawl shaft is provided with a cam-like surface which engages a cam-like aperture in a pawl receptacle. The pawl shaft has a cam follower which rides within a cam surface in a cam bracket that surrounds the shaft. Under the urging of a spring, the position of the pawl is controlled from its fully extended, unlocked position to a pre-capture position where the pawl is oriented at approximately 45.degree. to an aperture within the pawl receptacle. Insertion of the pawl into the pawl receptacle forces the pawl to rotate an additional 45.degree. against the urging of the spring. After full insertion of the pawl into the receptacle, the pawl rotates back to its 45.degree. position where it is captured therein. Further tightening of the knob will move the pawl to a locked, preload position under the control of the cam surface within the cam bracket.